IXL genetics questions and answers 100% pass

IXL genetics questions and answers 100% pass In a group of guinea pigs, some individuals have brown eyes and others have red eyes. In this group, the gene for the eye color trait has two alleles. The allele E is for brown eyes, and the allele e is for red eyes. Minnie, a guinea pig from this group, has brown eyes. Minnie has one allele for brown eyes and one allele for red eyes. Based on this information, what is Minnie's genotype for the eye color gene? Ee This passage describes the shell banding trait in Cepaea snails: Cepaea snails live on land in many parts of Europe. The shells of Cepaea snails can have different colors and patterns. Banded shells have dark bands, or stripes, that spiral around their surfaces. Unbanded shells do not have bands. In a group of Cepaea snails, some individuals have a banded shell and others have an unbanded shell. In this group, the gene for the shell banding trait has two alleles. The allele B is for a banded shell, and the allele b is for an unbanded shell. A certain Cepaea snail from this group has an unbanded shell. This snail has two alleles for an unbanded shell. Based on this information, what is this Cepaea snail's phenotype for the shell banding trait? An unbanded shell This passage describes the sickle-cell disease trait in humans: Sickle-cell disease is a condition that affects red blood cells. Red blood cells are disc-shaped cells in the blood that carry oxygen throughout the body. Humans with sickle-cell disease have red blood cells shaped like crescents. These cells may get stuck in blood vessels, preventing oxygen from reaching the rest of the body. This lack of oxygen can cause pain and fatigue. In a group of humans, some individuals have sickle-cell disease and others do not. In this group, the gene for the sickle-cell disease trait has two alleles. The allele A is for not having sickle-cell disease, and the allele a is for having sickle-cell disease. Tracy, a human from this group, does not have sickle-cell disease. Tracy has one allele for not having sickle-cell disease and one allele for having sickle-cell disease. Based on this information, what is Tracy's phenotype for the sickle-cell disease trait? not having sickle-cell disease In a group of budgerigar parakeets, some individuals have green body feathers and others have blue body feathers. In this group, the gene for the body feather color trait has two alleles. The allele B is for green body feathers, and the allele b is for blue body feathers. Iago, a budgerigar parakeet from this group, has green body feathers. Iago has two alleles for green body feathers. Based on this information, what is Iago's phenotype for the body feather color trait? Green body feathers In a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele B is for a normal-sized body, and the allele b is for a dwarf body. Cleo, a rat from this group, has a normal-sized body. Cleo has one allele for a normal-sized body and one allele for a dwarf body. Based on this information, what is Cleo's genotype for the body size gene? Bb This passage describes the antenna type trait in fruit flies: Most fruit flies have a pair of antennae on their head. But, some flies appear to have an extra pair of legs on their head instead! These flies have a mutation, or change, in a gene that affects body development. This mutation makes the cells in the fly's head form mutated antennae that are like legs. In a group of fruit flies, some individuals have mutated antennae and others have normal antennae. In this group, the gene for the antenna type trait has two alleles. The allele A is for mutated antennae, and the allele a is for normal antennae. A certain fruit fly from this group has mutated antennae. This fly has two alleles for mutated antennae. Based on this information, what is this fruit fly's phenotype for the antenna type trait? Mutated antennae In a group of ornamental gourd plants, some individuals have yellow fruit and others have green fruit. In this group, the gene for the fruit color trait has two alleles. The allele F is for yellow fruit, and the allele f is for green fruit. A certain ornamental gourd plant from this group has yellow fruit. This plant has two alleles for yellow fruit. Based on this information, what is this ornamental gourd plant's genotype for the fruit color gene? FF In a group of rose plants, some individuals have thorns and others do not. In this group, the gene for the thorns trait has two alleles. The allele R is for having thorns, and the allele r is for not having thorns. A certain rose plant from this group has thorns. This plant has two alleles for having thorns. Based on this information, what is this rose plant's phenotype for the thorns trait? Having thorns This passage describes the Bekko patterning trait in koi fish: The Bekko pattern is a pattern of colors found on the bodies of some koi fish. A koi fish with Bekko patterning has black patches all over its body. A koi fish without Bekko patterning does not have these patches. In a group of koi fish, some individuals have Bekko patterning and others do not. In this group, the gene for the Bekko patterning trait has two alleles. The allele B is for having Bekko patterning, and the allele b is for not having Bekko patterning. Nerine is a koi fish from this group. Nerine's phenotype for the Bekko patterning trait is having Bekko patterning. Nerine's genotype for the Bekko patterning gene is BB. Based on this information, complete the following statement: Nerine is ______ for the Bekko patterning gene. Homozygous This passage describes the leaf type trait in tomato plants: Tomato leaves come in many types, including regular leaves and potato leaves. Regular leaves are small and have jagged edges. Potato leaves are large and have smooth edges. In a group of tomato plants, some individuals have regular leaves and others have potato leaves. In this group, the gene for the leaf type trait has two alleles. The allele L is for regular leaves, and the allele l is for potato leaves. A certain tomato plant is from this group. This tomato plant's phenotype for the leaf type trait is regular leaves. This plant's genotype for the leaf type gene is Ll. Based on this information, complete the following statement: this tomato plant is ______ for the leaf type gene. Heterozygous In a group of cucumber plants, some individuals have bumpy fruit and others have smooth fruit. In this group, the gene for the fruit texture trait has two alleles. The allele F is for bumpy fruit, and the allele f is for smooth fruit. A certain cucumber plant is from this group. This cucumber plant's phenotype for the fruit texture trait is smooth fruit. This plant's genotype for the fruit texture gene is ff. Based on this information, complete the following statement: this cucumber plant is ______ for the fruit texture gene. Homozygous In a group of deer mice, some individuals have a hairy body and others have a hairless body. In this group, the gene for the body hair trait has two alleles. The allele for a hairless body (b) is recessive to the allele for a hairy body (B). Fuzzball is a deer mouse from this group. Fuzzball has the homozygous genotype BB for the body hair gene. Based on this information, what is Fuzzball's phenotype for the body hair trait? A hairy body In a group of American curl cats, some individuals have curled ears and others have straight ears. In this group, the gene for the ear type trait has two alleles. The allele for curled ears (E) is dominant over the allele for straight ears (e). Sparky is an American curl cat from this group. Sparky has the homozygous genotype EE for the ear type gene. Based on this information, what is Sparky's phenotype for the ear type trait? Curled ears In a group of rose plants, some individuals have light yellow flowers and others have dark yellow flowers. In this group, the gene for the flower color trait has two alleles. The allele for light yellow flowers (F) is dominant over the allele for dark yellow flowers (f). A certain rose plant from this group has the homozygous genotype FF for the flower color gene. Based on this information, what is this plant's phenotype for the flower color trait? Light yellow flowers In a group of pea plants, some individuals have round peas and others have wrinkled peas. In this group, the gene for the pea shape trait has two alleles. The allele for wrinkled peas (e) is recessive to the allele for round peas (E). A certain pea plant from this group has the homozygous genotype ee for the pea shape gene. Based on this information, what is this plant's phenotype for the pea shape trait? Wrinkled peas In a group of fruit flies, some individuals have red eyes and others have brown eyes. In this group, the gene for the eye color trait has two alleles. The allele for brown eyes (e) is recessive to the allele for red eyes (E). A certain fruit fly from this group has the homozygous genotype ee for the eye color gene. Based on this information, what is this fly's phenotype for the eye color trait? Brown eyes In a group of cucumber plants, some individuals have dull fruit and others have glossy fruit. In this group, the gene for the fruit sheen trait has two alleles. The allele for glossy fruit (f) is recessive to the allele for dull fruit (F). A certain cucumber plant from this group has dull fruit. Based on this cucumber plant's phenotype for the fruit sheen trait, what could be its genotype for the fruit sheen gene? State all that apply. FF and Ff In a group of jaguars, some individuals have a black coat and others have a spotted coat. In this group, the gene for the coat pattern trait has two alleles. The allele for a black coat (A) is dominant over the allele for a spotted coat (a). Sheba, a jaguar from this group, has a spotted coat. Based on Sheba's phenotype for the coat pattern trait, what could be Sheba's genotype for the coat pattern gene? State all that apply. aa This passage describes the iridescent scales trait in bettas: A betta, or Siamese fighting fish, is a popular aquarium pet. Many bettas have shiny iridescent scales, which contain tiny crystals that reflect light. These crystals cause the fish's color to look slightly different when seen from different angles. Some bettas are covered in mostly iridescent scales. Other bettas have mostly plain, non-iridescent scales. In a group of bettas, some individuals have mostly iridescent scales and others have mostly plain scales. In this group, the gene for the iridescent scales trait has two alleles. The allele for mostly iridescent scales (I) is dominant over the allele for mostly plain scales (i). Chum, a betta from this group, has mostly plain scales. Based on Chum's phenotype for the iridescent scales trait, what could be Chum's genotype for the iridescent scales gene? State all that apply. ii This passage describes the shell banding trait in Cepaea snails: Cepaea snails live on land in many parts of Europe. The shells of Cepaea snails can have different colors and patterns. Banded shells have dark bands, or stripes, that spiral around their surfaces. Unbanded shells do not have bands. In a group of Cepaea snails, some individuals have a banded shell and others have an unbanded shell. In this group, the gene for the shell banding trait has two alleles. The allele for an unbanded shell (b) is recessive to the allele for a banded shell (B). A certain Cepaea snail from this group has a banded shell. Based on this Cepaea snail's phenotype for the shell banding trait, what could be its genotype for the shell banding gene? State all that apply. BB and Bb In a group of pea plants, some individuals have round peas and others have wrinkled peas. In this group, the gene for the pea shape trait has two alleles. The allele for wrinkled peas (e) is recessive to the allele for round peas (E). A certain pea plant from this group has the heterozygous genotype Ee for the pea shape gene. Based on this information, what is this plant's phenotype for the pea shape trait? Round peas In a group of Nile tilapia fish, some individuals have a greenish-brown body and others have a pink body. In this group, the gene for the body color trait has two alleles. The allele for a greenish-brown body (B) is dominant over the allele for a pink body (b). A certain Nile tilapia fish from this group has the homozygous genotype BB for the body color gene. Based on this information, what is this fish's phenotype for the body color trait? A greenish-brown body